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Published in: Journal of Materials Science: Materials in Electronics 1/2016

01-10-2015

Enhanced visible light photocatalytic activity of Cr3+-doped anatase TiO2 nanoparticles synthesized by sol–gel method

Authors: H. M. Yadav, T. V. Kolekar, A. S. Barge, N. D. Thorat, S. D. Delekar, B. M. Kim, B. J. Kim, J. S. Kim

Published in: Journal of Materials Science: Materials in Electronics | Issue 1/2016

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Abstract

The photocatalytic degradation of methylene blue (MB) has been investigated under visible light irradiation with an incandescent light bulb using chromium doped TiO2 nanoparticles. Cr–TiO2 photocatalysts were successfully synthesized by sol–gel method at room temperature and characterized by X-ray diffraction (XRD), UV–Vis diffuse reflectance spectroscopy (UV–Vis DRS), Raman spectroscopy, Transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy. The band gap energy of the nanoparticles were estimated using UV–Vis DRS technique. With increasing Cr3+ cations content into TiO2 host lattice, the optical absorption band tuned in the visible region. XRD and TEM results reveal uniform and crystalline anatase TiO2 nanoparticles. The photodegradation of MB indicated that the photocatalytic activity of pure TiO2 nanoparticles increased with increasing Cr3+ cations concentration.

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Metadata
Title
Enhanced visible light photocatalytic activity of Cr3+-doped anatase TiO2 nanoparticles synthesized by sol–gel method
Authors
H. M. Yadav
T. V. Kolekar
A. S. Barge
N. D. Thorat
S. D. Delekar
B. M. Kim
B. J. Kim
J. S. Kim
Publication date
01-10-2015
Publisher
Springer US
Published in
Journal of Materials Science: Materials in Electronics / Issue 1/2016
Print ISSN: 0957-4522
Electronic ISSN: 1573-482X
DOI
https://doi.org/10.1007/s10854-015-3785-6

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